Nitrogen self-doped high specific surface area graphite carbon nitride for photocatalytic degradating of methylene blue
Source abstract
Abstract
Self-doped graphite carbon nitride (g-C3N4) is a hot topic in the field of photocatalysis. The g-C3N4 with nitrogen self-doped and higher specific surface area was obtained via adjusting the temperature of secondary calcination for 550 ° C, 590 ° C, and 625 ° C, which will improve its photocatalytic properties. The sp2 hybridized C is replaced by the nitrogen atom. It changes the electronic structure of the catalyst, allows the catalyst to display higher photo-generated carrier separation efficiency and a narrower bandgap than the original g-C3N4. In addition, the escape of ammonia gas in secondary calcinations results in a larger specific surface area, which will help the adsorption of dye and improvement photosensitive effects. Finally, the catalyst obtained at the secondary calcinations temperature of 590 °C had the best effect. It is an interesting phenomenon to obtain nitrogen self-doped carbon nitride after secondary calcinations, which provides a new idea for studying nitrogen doping of carbon nitride.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · 2D Materials and Applications · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
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